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Related Experiment Videos

Detachable clamps for minimal access surgery

T Frank1, G J Willetts, A Cuschieri

  • 1Department of Surgery, Ninewells Hospital and Medical School, University of Dundee, Scotland.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
|January 1, 1995
PubMed
Summary

A novel detachable clamp and applicator system for minimal access surgery ensures uniform force distribution during hollow visceral transection and anastomosis. This innovative surgical tool utilizes a pseudoelastic nickel-titanium alloy spring for enhanced performance and atraumatic tissue handling.

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Area of Science:

  • Surgical Innovation
  • Biomedical Engineering
  • Minimally Invasive Surgery

Background:

  • Minimal access surgery requires specialized instruments for hollow visceral procedures.
  • Existing clamps may present limitations in force distribution and port access.
  • Development of atraumatic, efficient tools is crucial for gastrointestinal surgery.

Purpose of the Study:

  • To develop and evaluate a detachable clamp and applicator system for minimal access surgery.
  • To ensure uniform occlusive force distribution during hollow visceral transection and anastomosis.
  • To assess the holding and atraumatic characteristics of the device in laparoscopic and thoracoscopic procedures.

Main Methods:

  • Development of a detachable clamp with parallel jaws and a pseudoelastic nickel-titanium (NiTi) alloy spring.

Related Experiment Videos

  • Design of an applicator for clamp deployment and retrieval.
  • Testing the clamp-applicator system in laparoscopic and thoracoscopic gastrointestinal surgery models.

    • Main Results:

    • The clamp ensures uniform occlusive force distribution via parallel jaws.
    • The detachable design frees the access port after clamp application.
    • The NiTi alloy spring provides advantageous force characteristics compared to stainless steel.
    • Excellent holding and atraumatic characteristics were confirmed in surgical use.

    Conclusions:

    • The developed detachable clamp and applicator system is effective for minimal access surgery.
    • The device facilitates hollow visceral transection and anastomosis with improved efficiency and safety.
    • The use of a NiTi alloy spring enhances the clamp's performance in terms of force and tissue handling.